Azo dye and process of making same.



UN ITED STATES PATENT OFFICE.

UARL IMMERHEISER, OF LUDWIGSHAFEN-ON-TIIF-RHINE, GERMANY, ASSIGNOR 'l() B.\-

DISCHE ANILIN & SODA FABRIK, OF LUDWIGSI'IAFEN-GN-THE-RHINE. G ERMANY, (OR- PORATION.

AZO DYE AND PROCESS OF MAKING SAME.

Specification of Letters Patent. Patented March 2, 1909.

Serial No. 458,441.

Application filed October 19, 1908.

My new coloring matter, whether in the presence or absence of the fiber, is insoluble in water and ozrtrentment with tin and bydrochloric acid. it loses its ornnge shade be- To all whom it way concern: 4 l Be it known that I, CARL IMMEnHEIsER, i doctor of philosophy and chemist, suhjeet oi the King of Bavaria, residing at Ludwigsl halen-on-the-llhine. Germany, have inl vented new and useful Improvements in (lroxy'qulnohn. Azo Colming-Mflttcr and Processes of Makl Now what I claim is: in; Same, ol which the following is a specig 1. The process of produeing orange shades firation. l on the fiber by treating the fiber whirh conhave disr-overed a new insoluble orange l teins (linzotized primulin Willi Lil-dilly- :izo coloring matter by combining rliniotized l (lroxyquiuolin, primulin with l.iilllllylll'()X Y(!UlllUllll. 1 .2. As 21 new m'tiele ol' mnnul'zu'tuie the My new coloring matter is preferably pro- 1 coloring mutter obtainable by rouibining, (lured on the fiber, when orange shades of dinzotized prinnilin with LIl-dilrvdroxvoxrellent lnsiness ngninst the notion ol' quiuoliu 'llhh is insoluble in water and on wishing, arid and light are obtained l treatment with tin and hydroehlorie neid l7 rnrry out my invention for inslnnre by loses its orange shade, hex-inning, yellow and treating in :L dinzotizing bath in the usual l yields amino-l.Il-dihydroxyquiuolin manner WU pnrl ol the umli-rinl whirh has l been d u-d with two mrls ol' prinlulin nnd my hand in [he |H(.\l*l('l of two suhseribing then pushing the lnnterinl through no nquw witnesses. ons s lul on of one ldlll of lhe [.Ilwlilrv-l ("\Rli l.\l .\llilllllll5lll(. daox rqo nolinl employed in [he form of its l l/Vituesses: diso'lilnn Mil nod one and onwhnll' pal-ls ol' Jr Anne. [n.oro, l'rlr'iuml soda, 1 JOB. ll. lildl'Tl-j.

in testimony whereol' l have hereunto set vcoming yellow and yields mniuo-'2.3-dih v- 

